1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
disa [49]
2 years ago
9

Can you help me4(b–1)²–9​

Mathematics
1 answer:
Tamiku [17]2 years ago
7 0

Answer:

(b-1)²-9​

= 4[(b - 1)(b - 1)] - 9

= 4[b² - b - b + 1] - 9

= 4(b² - 2b + 1) - 9

= 4b² - 8b + 4 - 9

= 4b² - 8b - 5

Hope this helps!

You might be interested in
The cost of electricity in a certain city is $0.08 for each of the first 300kWh (kilowatt-hours) and $0.13 for each kilowatt-hou
Ivahew [28]

Step-by-step explanation:

0.08*300 + 0.13x = 51.95

Multiply thru by 100 to get:

8*300 + 13x = 5195

13x = 5195-2400

13x = 2,795

x = 215 hours

7 0
3 years ago
Read 2 more answers
Which represents a quadratic function? f(x) = −8x3 − 16x2 − 4x f (x) = x 2 + 2x − 5 f(x) = + 1 f(x) = 0x2 − 9x + 7
Katena32 [7]
\text{A quadratic function:}\ f(x)=ax^2+bx+c\\\\\text{where}\ a\neq0
f(x)+-8x^3-16x^2-4x-NOT\\\\f(x)=x^2+2x-5-YES\\\\f(x)=?+1-NOT\\\\f(x)=0x^2-9x+7-NOT

8 0
3 years ago
Read 2 more answers
What will be the coordinates of Q?<br> A (-6, -5)<br> B (-5, -6)<br> C (5, 6)<br> D (6, 5)
Svetradugi [14.3K]

Answer:

I Dont understand

Step-by-step explanation:

6 0
3 years ago
with reference to a universal set, the inclusion of a subset in another is relation which is a) symmetric only b) transitive onl
Vlad [161]

Answer:

D?

Step-by-step explanation:

I think it is D since a universal set would only be {1,2,3,4,5,6,...} and the subset would not satisfy any of the conditions of symmetric, transitive, and reflexive.

5 0
3 years ago
Solve for X<br> Please walk me through the steps, I understand most of it I just forgot how to do it
nadya68 [22]

Answer:

x=8

Step-by-step explanation:

first you need to find the unknown corner so you do 180-71= 109

then find the interior angle degree (n-2)*180 (n=number of sides) so (4-2)*180=2(180)=360

then set everything equal to 360:

10x+6+13x-2+8x-1+109=360

(combine like terms)

31x+112=360

(subtract 112 form both sides)

31x=248

(divide both sides by 31)

x=8

8 0
3 years ago
Other questions:
  • What is the retail price of the couch?
    11·2 answers
  • Sin10° + tan40° × cos10° = ?<br>how to solve this??
    9·1 answer
  • What is an equation of the vertical line that passes through (-2,-9)
    9·1 answer
  • Somebody please help me please
    14·2 answers
  • What is the improper fraction of 17/2
    9·2 answers
  • Please help! Correct answer only!
    15·1 answer
  • PLZZ BRAINLIEST TO ANYBODY THAT CAN SOLVE THIS. (wrong or not at least try)
    5·1 answer
  • Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
    11·1 answer
  • Does anyone know the answer to any of these
    5·1 answer
  • What is the slope of the line segment? <br> 1 over 4<br> Negative 1 over 4<br> 4<br> −4
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!